On Tue, Jun 14, 2011 at 6:34 PM, Adeolu Adewoye <badicrown at="" hotmail.com=""> wrote:
>
> Dear Sean,
>
> I am trying to analyse my NimbleGen MeDIP-chip data using your ACME
package
> but have few questions.
>
> The output file from findRegions command generate suggested
enrichment
> regions based on the chosen threshold right? What is the statistical
test
> involved ( in order word the output suggested enrichment showing
mean and
> median? Is it possible to also output the pValue or probability of
> enrichment?
The findRegions function simply uses a threshold (default 1e-4)
p-values from a moving-window chi-square test at each probe. All of
the regions reported by findRegions that have a value of TRUE in the
TF (for True/False) column are considered "positive" and you will need
to play with the findRegions threshold a bit to find what works "best"
for your experiment. The mean and median values that are output by
findRegions can be used in a ranking fashion with higher means or
medians being "more enriched".
>
> Can you also please explain a bit more on how to load and view .sgr
file in
> the UCSC Genome Browser?
.sgr files are meant to be loaded into the IGB browser. I do not
think the .sgr file format is supported by the UCSC genome browser.
>
> Please not that?I have tried few things to ask for help using the
> bioconductor distribution list with no response.
Sorry about that. Thanks for being persistent.
Sean
On Tue, Jun 14, 2011 at 9:07 PM, Sean Davis <sdavis2 at="" mail.nih.gov="">
wrote:
> On Tue, Jun 14, 2011 at 6:34 PM, Adeolu Adewoye <badicrown at="" hotmail.com=""> wrote:
>>
>> Dear Sean,
>>
>> I am trying to analyse my NimbleGen MeDIP-chip data using your ACME
package
>> but have few questions.
>>
>> The output file from findRegions command generate suggested
enrichment
>> regions based on the chosen threshold right? What is the
statistical test
>> involved ( in order word the output suggested enrichment showing
mean and
>> median? Is it possible to also output the pValue or probability of
>> enrichment?
>
> The ?findRegions function simply uses a threshold (default 1e-4)
> p-values from a moving-window chi-square test at each probe. ?All of
> the regions reported by findRegions that have a value of TRUE in the
> TF (for True/False) column are considered "positive" and you will
need
> to play with the findRegions threshold a bit to find what works
"best"
> for your experiment. ?The mean and median values that are output by
> findRegions can be used in a ranking fashion with higher means or
> medians being "more enriched".
>
>>
>> Can you also please explain a bit more on how to load and view .sgr
file in
>> the UCSC Genome Browser?
>
> .sgr files are meant to be loaded into the IGB browser. ?I do not
> think the .sgr file format is supported by the UCSC genome browser.
Hi, Adeolu.
I added a simple write.bedGraph() function to ACME to generate
bedGraph format files for UCSC. It is available in the devel branch
(in a day or so), version 2.9.1 of ACME.
Sean
>>
>> Please not that?I have tried few things to ask for help using the
>> bioconductor distribution list with no response.
>
> Sorry about that. ?Thanks for being persistent.
>
> Sean
>
Does anyone try ACME on medip-chip?
On Wed, Jun 15, 2011 at 12:38 PM, Sean Davis <sdavis2 at="" mail.nih.gov="">
wrote:
> On Tue, Jun 14, 2011 at 9:07 PM, Sean Davis <sdavis2 at="" mail.nih.gov=""> wrote:
>> On Tue, Jun 14, 2011 at 6:34 PM, Adeolu Adewoye <badicrown at="" hotmail.com=""> wrote:
>>>
>>> Dear Sean,
>>>
>>> I am trying to analyse my NimbleGen MeDIP-chip data using your
ACME package
>>> but have few questions.
>>>
>>> The output file from findRegions command generate suggested
enrichment
>>> regions based on the chosen threshold right? What is the
statistical test
>>> involved ( in order word the output suggested enrichment showing
mean and
>>> median? Is it possible to also output the pValue or probability of
>>> enrichment?
>>
>> The ?findRegions function simply uses a threshold (default 1e-4)
>> p-values from a moving-window chi-square test at each probe. ?All
of
>> the regions reported by findRegions that have a value of TRUE in
the
>> TF (for True/False) column are considered "positive" and you will
need
>> to play with the findRegions threshold a bit to find what works
"best"
>> for your experiment. ?The mean and median values that are output by
>> findRegions can be used in a ranking fashion with higher means or
>> medians being "more enriched".
>>
>>>
>>> Can you also please explain a bit more on how to load and view
.sgr file in
>>> the UCSC Genome Browser?
>>
>> .sgr files are meant to be loaded into the IGB browser. ?I do not
>> think the .sgr file format is supported by the UCSC genome browser.
>
> Hi, Adeolu.
>
> I added a simple write.bedGraph() function to ACME to generate
> bedGraph format files for UCSC. ?It is available in the devel branch
> (in a day or so), version 2.9.1 of ACME.
>
> Sean
>
>
>>>
>>> Please not that?I have tried few things to ask for help using the
>>> bioconductor distribution list with no response.
>>
>> Sorry about that. ?Thanks for being persistent.
>>
>> Sean
>>
>
> _______________________________________________
> Bioconductor mailing list
> Bioconductor at r-project.org
> https://stat.ethz.ch/mailman/listinfo/bioconductor
> Search the archives:
http://news.gmane.org/gmane.science.biology.informatics.conductor
Does anyone try ACME on medip-chip?
On Wed, Jun 15, 2011 at 12:38 PM, Sean Davis <sdavis2 at="" mail.nih.gov="">
wrote:
> On Tue, Jun 14, 2011 at 9:07 PM, Sean Davis <sdavis2 at="" mail.nih.gov=""> wrote:
>> On Tue, Jun 14, 2011 at 6:34 PM, Adeolu Adewoye <badicrown at="" hotmail.com=""> wrote:
>>>
>>> Dear Sean,
>>>
>>> I am trying to analyse my NimbleGen MeDIP-chip data using your
ACME package
>>> but have few questions.
>>>
>>> The output file from findRegions command generate suggested
enrichment
>>> regions based on the chosen threshold right? What is the
statistical test
>>> involved ( in order word the output suggested enrichment showing
mean and
>>> median? Is it possible to also output the pValue or probability of
>>> enrichment?
>>
>> The ?findRegions function simply uses a threshold (default 1e-4)
>> p-values from a moving-window chi-square test at each probe. ?All
of
>> the regions reported by findRegions that have a value of TRUE in
the
>> TF (for True/False) column are considered "positive" and you will
need
>> to play with the findRegions threshold a bit to find what works
"best"
>> for your experiment. ?The mean and median values that are output by
>> findRegions can be used in a ranking fashion with higher means or
>> medians being "more enriched".
>>
>>>
>>> Can you also please explain a bit more on how to load and view
.sgr file in
>>> the UCSC Genome Browser?
>>
>> .sgr files are meant to be loaded into the IGB browser. ?I do not
>> think the .sgr file format is supported by the UCSC genome browser.
>
> Hi, Adeolu.
>
> I added a simple write.bedGraph() function to ACME to generate
> bedGraph format files for UCSC. ?It is available in the devel branch
> (in a day or so), version 2.9.1 of ACME.
>
> Sean
>
>
>>>
>>> Please not that?I have tried few things to ask for help using the
>>> bioconductor distribution list with no response.
>>
>> Sorry about that. ?Thanks for being persistent.
>>
>> Sean
>>
>
> _______________________________________________
> Bioconductor mailing list
> Bioconductor at r-project.org
> https://stat.ethz.ch/mailman/listinfo/bioconductor
> Search the archives:
http://news.gmane.org/gmane.science.biology.informatics.conductor